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Add .NET MAUI sample app
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‎Exceptionless.Net.slnx‎

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<Project Path="samples/Exceptionless.SampleHosting/Exceptionless.SampleHosting.csproj" />
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<Project Path="samples/Exceptionless.SampleLambda/Exceptionless.SampleLambda.csproj" />
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<Project Path="samples/Exceptionless.SampleLambdaAspNetCore/Exceptionless.SampleLambdaAspNetCore.csproj" />
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<Project Path="samples/Exceptionless.SampleMaui/Exceptionless.SampleMaui.csproj" />
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<Project Path="samples/Exceptionless.SampleMvc/Exceptionless.SampleMvc.csproj">
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<BuildDependency Project="src/Exceptionless/Exceptionless.csproj" />
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<BuildDependency Project="src/Platforms/Exceptionless.Mvc/Exceptionless.Mvc.csproj" />

‎samples/Exceptionless.SampleMaui/App.cs‎

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namespace Exceptionless.SampleMaui;
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public sealed class App : Application {
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private readonly ExceptionlessClient _exceptionlessClient;
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private readonly MainPage _mainPage;
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public App(MainPage mainPage, ExceptionlessClient exceptionlessClient) {
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_exceptionlessClient = exceptionlessClient;
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_mainPage = mainPage;
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}
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protected override Window CreateWindow(IActivationState? activationState) {
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return new Window(_mainPage);
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}
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protected override void OnSleep() {
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_ = _exceptionlessClient.ProcessQueueAsync();
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base.OnSleep();
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}
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}

‎samples/Exceptionless.SampleMaui/Exceptionless.SampleMaui.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFrameworks>net10.0-android</TargetFrameworks>
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<TargetFrameworks Condition="!$([MSBuild]::IsOSPlatform('linux'))">$(TargetFrameworks);net10.0-ios;net10.0-maccatalyst</TargetFrameworks>
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<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net10.0-windows10.0.19041.0</TargetFrameworks>
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<OutputType>Exe</OutputType>
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<RootNamespace>Exceptionless.SampleMaui</RootNamespace>
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<UseMaui>true</UseMaui>
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<SingleProject>true</SingleProject>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<ApplicationTitle>Exceptionless MAUI Sample</ApplicationTitle>
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<ApplicationId>com.exceptionless.samplemaui</ApplicationId>
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<ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
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<ApplicationVersion>1</ApplicationVersion>
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<WindowsPackageType>None</WindowsPackageType>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">15.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">15.0</SupportedOSPlatformVersion>
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<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
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<TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
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</PropertyGroup>
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<ItemGroup>
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<MauiIcon Include="Resources\AppIcon\appicon.svg" ForegroundFile="Resources\AppIcon\appiconfg.svg" Color="#3A6EA5" />
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<MauiSplashScreen Include="Resources\Splash\splash.svg" Color="#3A6EA5" BaseSize="128,128" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.Maui.Controls" Version="$(MauiVersion)" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\src\Exceptionless\Exceptionless.csproj" SetTargetFramework="TargetFramework=netstandard2.0" />
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</ItemGroup>
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</Project>

‎samples/Exceptionless.SampleMaui/MainPage.cs‎

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using Exceptionless.Logging;
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using Microsoft.Maui.Controls.Shapes;
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namespace Exceptionless.SampleMaui;
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public sealed class MainPage : ContentPage {
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private readonly ExceptionlessClient _exceptionlessClient;
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private readonly Label _statusLabel;
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private readonly Label _lastReferenceIdLabel;
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private readonly ActivityIndicator _activityIndicator;
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public MainPage(ExceptionlessClient exceptionlessClient) {
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_exceptionlessClient = exceptionlessClient;
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Title = "Exceptionless";
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BackgroundColor = Color.FromArgb("#F6F8FA");
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_statusLabel = new Label {
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Text = "Ready",
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FontSize = 14,
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TextColor = Color.FromArgb("#314256"),
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LineBreakMode = LineBreakMode.WordWrap
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};
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_lastReferenceIdLabel = new Label {
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Text = "Last reference id: none",
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FontSize = 13,
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TextColor = Color.FromArgb("#576575"),
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LineBreakMode = LineBreakMode.TailTruncation
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};
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_activityIndicator = new ActivityIndicator {
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IsVisible = false,
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Color = Color.FromArgb("#276749")
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};
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Content = BuildContent();
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}
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private View BuildContent() {
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var sendExceptionButton = CreateActionButton("Send Handled Exception", OnSendExceptionClicked);
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var sendLogButton = CreateActionButton("Send Warning Log", OnSendLogClicked);
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var trackFeatureButton = CreateActionButton("Track Feature", OnTrackFeatureClicked);
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var flushButton = CreateActionButton("Flush Queue", OnFlushClicked);
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return new ScrollView {
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Content = new VerticalStackLayout {
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Padding = new Thickness(24, 28),
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Spacing = 18,
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Children = {
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new Label {
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Text = "Exceptionless MAUI Sample",
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FontSize = 26,
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FontAttributes = FontAttributes.Bold,
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TextColor = Color.FromArgb("#1D2733")
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},
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new Label {
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Text = "Submit sample events through the core Exceptionless client.",
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FontSize = 15,
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TextColor = Color.FromArgb("#576575"),
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LineBreakMode = LineBreakMode.WordWrap
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},
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new Border {
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Stroke = Color.FromArgb("#D8DEE6"),
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StrokeThickness = 1,
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BackgroundColor = Colors.White,
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StrokeShape = new RoundRectangle { CornerRadius = 8 },
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Padding = new Thickness(18),
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Content = new VerticalStackLayout {
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Spacing = 12,
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Children = {
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new Label {
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Text = "Client",
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FontSize = 18,
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FontAttributes = FontAttributes.Bold,
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TextColor = Color.FromArgb("#1D2733")
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},
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new Label {
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Text = $"Server: {_exceptionlessClient.Configuration.ServerUrl}",
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FontSize = 13,
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TextColor = Color.FromArgb("#576575"),
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LineBreakMode = LineBreakMode.TailTruncation
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},
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new Label {
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Text = $"Private information: {_exceptionlessClient.Configuration.IncludePrivateInformation}",
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FontSize = 13,
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TextColor = Color.FromArgb("#576575")
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},
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_statusLabel,
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_lastReferenceIdLabel,
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_activityIndicator
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}
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}
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},
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new Grid {
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ColumnDefinitions = {
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new ColumnDefinition { Width = GridLength.Star },
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new ColumnDefinition { Width = GridLength.Star }
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},
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RowDefinitions = {
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new RowDefinition { Height = GridLength.Auto },
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new RowDefinition { Height = GridLength.Auto }
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},
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ColumnSpacing = 12,
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RowSpacing = 12,
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Children = {
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sendExceptionButton,
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sendLogButton,
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trackFeatureButton,
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flushButton
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}
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}
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}
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}
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};
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}
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private static Button CreateActionButton(string text, EventHandler clicked) {
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var button = new Button {
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Text = text,
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BackgroundColor = Color.FromArgb("#285A84"),
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TextColor = Colors.White,
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CornerRadius = 8,
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FontAttributes = FontAttributes.Bold,
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MinimumHeightRequest = 48
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};
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button.Clicked += clicked;
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return button;
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}
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private async void OnSendExceptionClicked(object? sender, EventArgs e) {
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await RunClientActionAsync("Handled exception queued.", () => {
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string referenceId = Guid.NewGuid().ToString("N");
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try {
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throw new InvalidOperationException("Exceptionless MAUI sample handled exception.");
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} catch (Exception ex) {
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ex.ToExceptionless(_exceptionlessClient)
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.SetReferenceId(referenceId)
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.AddTags("handled")
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.SetProperty("Screen", nameof(MainPage))
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.Submit();
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}
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SetLastReferenceId(referenceId);
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return Task.CompletedTask;
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});
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}
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private async void OnSendLogClicked(object? sender, EventArgs e) {
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await RunClientActionAsync("Warning log queued.", () => {
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_exceptionlessClient.SubmitLog("Exceptionless.SampleMaui.MainPage", "MAUI sample warning log.", LogLevel.Warn);
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SetLastReferenceId(_exceptionlessClient.GetLastReferenceId());
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return Task.CompletedTask;
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});
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}
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private async void OnTrackFeatureClicked(object? sender, EventArgs e) {
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await RunClientActionAsync("Feature usage queued.", () => {
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_exceptionlessClient.SubmitFeatureUsage("MauiSample.TrackFeature");
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SetLastReferenceId(_exceptionlessClient.GetLastReferenceId());
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return Task.CompletedTask;
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});
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}
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private async void OnFlushClicked(object? sender, EventArgs e) {
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await RunClientActionAsync("Queue processed.", () => _exceptionlessClient.ProcessQueueAsync());
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}
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private async Task RunClientActionAsync(string successMessage, Func<Task> action) {
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try {
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_activityIndicator.IsVisible = true;
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_activityIndicator.IsRunning = true;
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_statusLabel.Text = "Working...";
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await action();
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_statusLabel.Text = successMessage;
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} catch (Exception ex) {
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_statusLabel.Text = $"Error: {ex.Message}";
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} finally {
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_activityIndicator.IsRunning = false;
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_activityIndicator.IsVisible = false;
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}
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}
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private void SetLastReferenceId(string? referenceId) {
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_lastReferenceIdLabel.Text = String.IsNullOrEmpty(referenceId)
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? "Last reference id: none"
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: $"Last reference id: {referenceId}";
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}
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}

‎samples/Exceptionless.SampleMaui/MauiProgram.cs‎

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using Exceptionless.Logging;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Maui.Storage;
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namespace Exceptionless.SampleMaui;
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public static class MauiProgram {
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private const string DefaultApiKey = "LhhP1C9gijpSKCslHHCvwdSIz298twx271nTest";
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private const string DefaultServerUrl = "https://ex.dev.localhost:7111";
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public static MauiApp CreateMauiApp() {
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var builder = MauiApp.CreateBuilder();
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var exceptionlessClient = CreateExceptionlessClient();
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builder
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.UseMauiApp<App>();
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builder.Services.AddSingleton(exceptionlessClient);
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builder.Services.AddSingleton<MainPage>();
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return builder.Build();
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}
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private static ExceptionlessClient CreateExceptionlessClient() {
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string appDataDirectory = FileSystem.Current.AppDataDirectory;
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var client = new ExceptionlessClient(config => {
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config.ApiKey = Environment.GetEnvironmentVariable("EXCEPTIONLESS_API_KEY") ?? DefaultApiKey;
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config.ServerUrl = Environment.GetEnvironmentVariable("EXCEPTIONLESS_SERVER_URL") ?? DefaultServerUrl;
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config.IncludePrivateInformation = false;
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config.DefaultTags.Add("maui");
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config.DefaultTags.Add("sample");
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config.DefaultData["Platform"] = DeviceInfo.Current.Platform.ToString();
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config.DefaultData["DeviceIdiom"] = DeviceInfo.Current.Idiom.ToString();
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config.SetVersion(AppInfo.Current.VersionString);
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config.UseFolderStorage(Path.Combine(appDataDirectory, "exceptionless-queue"));
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config.UseFileLogger(Path.Combine(appDataDirectory, "exceptionless-client.log"), LogLevel.Info);
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});
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client.Startup();
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return client;
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}
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}

‎samples/Exceptionless.SampleMaui/Platforms/Android/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<uses-permission android:name="android.permission.INTERNET" />
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</manifest>

‎samples/Exceptionless.SampleMaui/Platforms/Android/MainActivity.cs‎

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using Android.App;
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using Android.Content.PM;
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namespace Exceptionless.SampleMaui;
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[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
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public class MainActivity : MauiAppCompatActivity {
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}

‎samples/Exceptionless.SampleMaui/Platforms/Android/MainApplication.cs‎

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using Android.App;
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using Android.Runtime;
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namespace Exceptionless.SampleMaui;
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[Application]
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public class MainApplication : MauiApplication {
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public MainApplication(IntPtr handle, JniHandleOwnership ownership) : base(handle, ownership) {
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}
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protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
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}

‎samples/Exceptionless.SampleMaui/Platforms/MacCatalyst/AppDelegate.cs‎

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using Foundation;
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namespace Exceptionless.SampleMaui;
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[Register("AppDelegate")]
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public class AppDelegate : MauiUIApplicationDelegate {
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protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
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}

‎samples/Exceptionless.SampleMaui/Platforms/MacCatalyst/Entitlements.plist‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>com.apple.security.app-sandbox</key>
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<true/>
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<key>com.apple.security.network.client</key>
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<true/>
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</dict>
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</plist>

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